Effects of Variations in the Tragus Expansion Angle on Users’ Comfort for In-ear Wearables

Proceedings of the Human Factors and Ergonomics Society ... Annual Meeting. Human Factors and Ergonomics Society. Annual meeting Pub Date : 2023-10-25 DOI:10.1177/21695067231192616

Hao Fan, Mengcheng Wang, Xiao Zhao, Yihui Ren, Chen Chen, Yunjie Dou, Jinlei Shi, Dengkai Chen, Carisa Harris-Adamson, Chunlei Chai

{"title":"Effects of Variations in the Tragus Expansion Angle on Users’ Comfort for In-ear Wearables","authors":"Hao Fan, Mengcheng Wang, Xiao Zhao, Yihui Ren, Chen Chen, Yunjie Dou, Jinlei Shi, Dengkai Chen, Carisa Harris-Adamson, Chunlei Chai","doi":"10.1177/21695067231192616","DOIUrl":null,"url":null,"abstract":"Tragus expansion angle (TEA) is an angular variable that quantifies the degree of outward expansion of the tragus cartilage induced by in-ear wearables worn in the human ear. However, the TEA cannot be measured directly, and the mechanism that explains how expansion variations affect users’ comfort experience is not well understood. The purpose of this study was to establish a quantitative relationship between variations in the tragus expansion angle and users’ comfort experience. TEA was measured on 400 healthy participants and normalized using a measuring device (ATMC prototype) and Tragus Expansion Index (TEI). Our results show that the comfort range across variations in TEA was similar for both sexes, yet compared to females, males could tolerate larger variations both in TEA and TEI. A quantitative relationship was established using TEI values, (dis)comfort ratings and GaussAmp function, which can be employed for ergonomic design purposes.","PeriodicalId":74544,"journal":{"name":"Proceedings of the Human Factors and Ergonomics Society ... Annual Meeting. Human Factors and Ergonomics Society. Annual meeting","volume":"82 10","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2023-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Proceedings of the Human Factors and Ergonomics Society ... Annual Meeting. Human Factors and Ergonomics Society. Annual meeting","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1177/21695067231192616","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}

引用次数: 0

Abstract

Tragus expansion angle (TEA) is an angular variable that quantifies the degree of outward expansion of the tragus cartilage induced by in-ear wearables worn in the human ear. However, the TEA cannot be measured directly, and the mechanism that explains how expansion variations affect users’ comfort experience is not well understood. The purpose of this study was to establish a quantitative relationship between variations in the tragus expansion angle and users’ comfort experience. TEA was measured on 400 healthy participants and normalized using a measuring device (ATMC prototype) and Tragus Expansion Index (TEI). Our results show that the comfort range across variations in TEA was similar for both sexes, yet compared to females, males could tolerate larger variations both in TEA and TEI. A quantitative relationship was established using TEI values, (dis)comfort ratings and GaussAmp function, which can be employed for ergonomic design purposes.

查看原文本刊更多论文

耳屏展开角度变化对入耳式可穿戴设备用户舒适度的影响

耳屏扩张角(Tragus expansion angle, TEA)是一个角度变量，用于量化人耳中佩戴入耳式可穿戴设备引起耳屏软骨向外扩张的程度。然而，TEA不能直接测量，并且解释膨胀变化如何影响用户舒适体验的机制尚不清楚。本研究的目的是建立耳屏扩张角变化与使用者舒适体验之间的定量关系。对400名健康受试者进行TEA测量，并使用测量仪(ATMC原型)和Tragus Expansion Index (TEI)进行归一化。我们的研究结果表明，男女对TEA变化的舒适范围是相似的，但与女性相比，男性可以忍受更大的TEA和TEI变化。使用TEI值、(dis)舒适评级和GaussAmp函数建立定量关系，可用于人体工程学设计目的。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Proceedings of the Human Factors and Ergonomics Society ... Annual Meeting. Human Factors and Ergonomics Society. Annual meeting

自引率

0.00%

发文量